Frequently Asked Questions
Q: How does the Twin-Turbo drive unit maintain airflow as the filters load with dust?
A: The Powercap Infinity uses a dual fan Twin-Turbo design rather than a single fan, which JSP built specifically to sustain the 160 litres per minute airflow rating as pre-filter covers and main filters gradually load with particulate during a shift. Real time diagnostics monitor the system twice a second and will flag a drop in performance via the heads up display before airflow falls below a safe level. This matters more for a supervisor covering several hazard zones in one shift than for an operative working a single task, since filter loading happens faster across mixed dust types.
Q: What does the TH3P rating on this respirator mean?
A: TH3 is the highest protection class under EN12941:1998+A2:2008 for powered respirators with a hood or helmet, carrying a Nominal Protection Factor of 500, equivalent to a UK Assigned Protection Factor of 40. The P suffix confirms the fitted filters are particle filters rather than gas or combined filters, meaning the unit protects against airborne dust and particulates but not gases or vapours. R in a filter's classification indicates it is reusable rather than restricted to a single shift. The rating covers particulate hazards only, so a supervisor moving into a chemical gas environment would need a different type of respiratory protection entirely.
Q: What is this respirator not suitable for?
A: This unit is not designed for chemical gas environments, oxygen deficient atmospheres or explosive atmospheres, and should not be fully immersed in water. The natural rubber skirt is not suitable for operatives with a known rubber allergy. Supervisors moving between a dust hazard zone and a chemical process area during the same walkaround should switch to a gas rated respirator for the latter rather than relying on this unit throughout.
Q: Why does this unit cover more hazard types than a single-cartridge respirator?
A: JSP rates the Powercap Infinity's filtration against a wide range of particulate hazards including demolition dust, forestry and wood dust, paint stripping residue, fibreglass and metallic dust, rather than a single contaminant type. A standard half-mask respirator typically needs a specific cartridge matched to one hazard, meaning a supervisor moving between different work areas would otherwise need several masks or cartridge changes in a single shift. This unit's approved application range removes that need, provided every hazard encountered is particulate rather than gas or vapour based.
Q: Can one unit be shared across a team with different head sizes?
A: Yes. The EVO5 Olympus helmet base adjusts across a 53cm to 63cm head size range using the wheel ratchet harness, which covers the great majority of adult head sizes. Each wearer should readjust the ratchet to their own fit before use rather than relying on the previous wearer's setting, since an unadjusted harness can affect both comfort and the visor seal.
Q: How do I maintain the Twin-Turbo drive unit and filters?
A: Check and clear the pre-filter covers regularly, particularly after heavy dust exposure, since a blocked pre-filter reduces airflow before the main TH3P R SL filter needs replacing. The main filters are removed by rotating upwards and refitted by aligning and twisting into place, with the use by date printed on each cartridge. Clean plastic components with a damp cloth only, and never immerse the unit in water.
Q: Can CMT Group set up ongoing supply for a supervisory team needing multiple units and spare filters?
A: Yes. The EDGE portal allows procurement teams to set agreed contract pricing and place repeat orders for units, TH3P R SL filter pairs and other spares through a single account, with role based ordering controls across multiple sites. The EDGE App also gives live stock visibility and order tracking for teams reordering consumables like filters and pre-filter covers on a recurring basis. This suits supervisory teams standardising respiratory PPE across several site roles rather than ordering ad hoc.
Q: What assurance does CMT Group offer that this respiratory PPE is genuine and correctly certified?
A: CMT Group has supplied UK construction and industrial sites since 2010 and has grown into one of the UK's fastest growing independent suppliers of site equipment, holding an Excellent rating on Trustpilot. Respiratory PPE is sourced and checked through the same supply chain and compliance processes as the rest of the safety range, rather than through a separate or lower scrutiny channel. For teams wanting to verify a specific unit, CMT can confirm current certification documents at the time of ordering.
